Home of the Original $189 Window! Our motto is the same today as it was in the beginning... Provide Superior Product, Installed by a professional craftsman, guaranteed low prices. Window World Sioux Falls carries a full line of replacement and new construction windows and doors, which leading manufacturers make to our specifications. We are a manufacturer-direct full-service company. All Window World vinyl products are made from virgin vinyl rather than recycled vinyl, have a lifetime warranty, and never need time-consuming puttying, scraping and painting. Just wipe the frame clean with a little soap and water--thats all you ever need to do!